8 results about "Engineering technician" patented technology

The invention provides an interpretable fault diagnosis method, system and device for a fan blade and a medium, and relates to the technical field of wind power plants. According to the method, multi-modal sensing data and priori knowledge of material science are integrated, and a pre-trained multi-modal big language model is utilized to perform data fusion and causal reasoning, so that accurate diagnosis of fault types of the fan blades, accurate positioning of damage positions and effective tracking of damage development paths are realized. The method not only improves the accuracy and robustness of fault diagnosis, but also provides an explanatory result which is easy to understand, thereby providing powerful support for engineering technicians, and enabling the fault diagnosis process to be more transparent and reliable. The method effectively overcomes the problems that a traditional single-mode diagnosis method is weak in generalization ability and lacks semantic interpretation.

This invention discloses a method for strength calculation of a detachable support device. The method includes: obtaining the supporting force and radial force per unit length of the detachable support device; calculating the bending moment and horizontal tensile force at the connecting section based on the supporting force and the radial force per unit length; establishing the static moment equilibrium equation of the connecting section and determining the neutral axis position of the connecting section through iterative calculation; calculating the moment of inertia of the connecting section based on the neutral axis position; and calculating the maximum tensile stress borne by the fastener based on the moment of inertia, the bending moment, and the horizontal tensile force, so as to perform strength verification of the connecting section. This invention derives the strength verification formula and judgment criteria for key stress sections in detachable support structures, which is convenient for engineering technicians and ensures operational safety.

The invention discloses an electric power system reliability evaluation method considering multi-level earthquake influence, and the method gives consideration to the influence of factors such as multi-state of an earthquake scene, multi-level of earthquake influence and multi-state of electric power equipment according to the actual demands of the reliability analysis of an electric power system, and employs technical means such as a general generation function. The problem of reliability evaluation of the power system is solved. The method is scientific and reasonable, meets actual engineering requirements, is simple in calculation, is convenient for engineering technicians to use, and has high application value in engineering.

The invention belongs to the technical field of aerodynamic design of noise reduction structures in the railway industry, and relates to an aerodynamic design method of a ventilation type noise reduction structure of a high-speed railway and application of the aerodynamic design method.The aerodynamic design method comprises the following steps that a load shedding rate target value of the ventilation type noise reduction structure is determined; the size and the shape of the ventilation type noise reduction structure are determined; determining a load shedding rate calculation formula of the ventilation type noise reduction structure under different conditions, and calculating according to the formula to obtain the load shedding rate of the ventilation type noise reduction structure under the conditions of different ventilation duct spacing L and chamfer radius R; determining application conditions in a load shedding rate calculation formula; and determining the load shedding rate of the ventilation type noise reduction structure meeting the application conditions through a load shedding rate calculation formula. According to the ventilation type noise reduction structure load shedding rate calculation formula under different conditions, load shedding rate target values needing to be achieved under different working conditions are defined, large modeling analysis and large-scale tests are avoided, the method is suitable for common engineering technicians, the engineering applicability is high, the application range is wide, and ventilation and noise reduction structure design can be carried out easily.

The present application belongs to the technical field of aerodynamic design of noise reduction structure in railway industry, and relates to an aerodynamic design method of a ventilation type noise reduction structure of high-speed railway and application thereof, comprising the following steps: determining a target value of load reduction rate of the ventilation type noise reduction structure; determining the size and shape of the ventilation type noise reduction structure; determining a load reduction rate calculation formula of the ventilation type noise reduction structure under different conditions, and calculating the load reduction rate of the ventilation type noise reduction structure under different ventilation hole distances L , chamfer radius R conditions according to the formula; determining the applicable conditions in the load reduction rate calculation formula; and determining the load reduction rate of the ventilation type noise reduction structure meeting the applicable conditions through the load reduction rate calculation formula. The load reduction rate calculation formula of the ventilation type noise reduction structure under different conditions proposed by the method clearly defines the target value of the load reduction rate to be reached under different working conditions, avoids large modeling analysis and large-scale testing, is suitable for ordinary engineering technicians, has strong engineering applicability, has a wide application range, and is conducive to the design of ventilation and noise reduction structure.

The microseismic monitoring-based processing method, device, and computer program product disclosed herein screen first effective microseismic events and determine their parameter information. This information is then used to determine an intersection chart representing the parameter information of the first effective microseismic events and first engineering parameters. Second engineering parameters can then be determined based on the intersection chart. If the second engineering parameters meet the requirements, they are used to guide the next stage of engineering construction. If the second engineering parameters meet the requirements, the engineering parameters can be dynamically adjusted in real time. This reduces the computational workload of on-site personnel and improves drawing efficiency. It also helps engineering technicians make rapid decisions based on comprehensive changes in fracturing curves.

The invention provides an air pressure simulation experiment device for well cementation of a horizontal well. The air pressure simulation experiment device comprises a first carrying table and a second carrying table fixedly connected to one side of the first carrying table. The bottom of the supporting pedestal is mounted to the top of the first carrying table through an inclination angle adjusting mechanism; the simulation shaft is arranged on the top surface of the supporting pedestal, and the supporting pedestal is provided with a mounting mechanism used for locking or unlocking the simulation shaft; the device comprises a mounting mechanism, a fluid inlet and outlet mechanism, an air inflation mechanism and a pressure release valve, and the output end of the fluid inlet and outlet mechanism, the output end of the air inflation mechanism and the pressure release valve are fixedly connected with a connecting frame arranged on one side of the mounting mechanism. The simulation shaft is synchronously connected or disconnected with the fluid inlet and outlet mechanism, the inflation mechanism and the pressure release valve. Through the arrangement of an inclination angle adjusting mechanism, a fluid inlet and outlet mechanism, an inflation mechanism and a pressure release valve, different inclination angles and air pressure environments can be provided for the simulation wellbore, and oil and gas exploitation engineering technicians can know and learn.

The invention discloses a portable pull card for Chinese and foreign common metal alloy component and mark contrast, and aims to solve the problem that engineering technicians are inconvenient to inquire metal alloy parameters. The pull clamp is composed of three plate sheets, the first plate sheet and the second plate sheet are provided with display windows to form a T-shaped structure, and the third plate sheet is a sticking sheet capable of being pulled up and down. By pulling the third plate, the arrow is aligned with the appointed alloy grade, and the corresponding chemical components are displayed on the window. The method has the advantages that more than 180 common metal marks and chemical components are provided, mark contrast and chemical component elements can be expanded and updated according to application requirements, a simple, convenient and rapid query method is provided for engineering technicians, and the method has practical significance.